interstellar
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/ˌɪntərˈstelər/
🇬🇧
/ˌɪntəˈstelə(r)/
Existing or occurring in the space between the stars.
The interstellar medium is the matter and radiation that exists in the space between the star systems in a galaxy.
星際介質是存在於星系內恆星系統之間的空間中的物態和輻射。